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L1

L2

L3 OFF

GND
L1

Supply voltage

ON F U 1 460 V H1 H3 H2 H4 H1 H3 F U 2 230 V H2 H4

A1 B1 15 B2 B2 B1 B3 1 STOP STOP STOP 15

START

L2

AC 13 21 22 Orange LOAD X3

L1

START 2 START 3

M

OL

14
H

Optional Connection X1 115 V X2 R F U 3 X1A Optional F U 5 Power On F U 6 F U 4 X2A Electrostatically Shielded Transformer

16 18

16 18 B3 A2M

X2 Green X1 AC L2

L
M

2 Levels

1 5

2 6 10

4 8 12 14 (+)

Location 13 21 31 43 53 Status (N.O. or N.C.)

9 13 (–)

A1/+ 15 25 Z1 Z2
14 22 32 44 54
Supply voltage A1 15 B2 B1 B3 B1 B2 15

HAZARDOUS LOCATIONS CLASS I GROUPS A, B, C & D CLASS II GROUPS E, F & G CLASS III FIBER OPTIC PUSH BUTTON, SELECTOR SWITCH, LIMIT SWITCH, ETC. FIBER OPTIC CABLE

NONHAZARDOUSLOCATIONS

FIBER OPTIC TRANSCEIVER CLASS 9005 TYPE FT FIBER OPTIC CABLE ELECTRICAL CONNECTIONS

16 18

16 18 B3 A2

H

L
M

16 18 26 28 A2/–
2 Levels
M 1CT

Vs

1 3 5 L1 L2 L3

L1

BOUNDARY SEAL TO BE IN ACCORDANCE WITH ARTICLE 501-5 OF THE NATIONAL ELECTRICAL CODE

CIRCUIT BREAKER OR DISCONNECT SWITCH

A1

T1

M

T2 MOTOR

L2

A1 A2

A2
3 L1 T1 T2 T3 1 L2 L3L3

M

3CT

T3

SOLID STATE OVERLOAD RELAY TO 120 V SEPARATE CONTROL

MOTOR 2
T1 T2 T3 2 4 6

STOP

START OT*
M

T1

T2

T3
M

* OT is a switch that opens
when an overtemperature condition exists (Type MFO and MGO only)

Wiring Diagram Book

TRADEMARKS

QWIK-STOP® and ALHPA-PAK® are registered trademarks of Square D. NEC® is a registered trademark of the NationalFire Protection Association.

COPYRIGHT NOTICE PLEASE NOTE:

© 1993 Square D. All rights reserved. This document may not be copied in whole or in part, or transferred to any other media, without the written permission of Square D. Electrical equipment should be serviced only by qualified electrical maintenance personnel, and this document should not be viewed as sufficient instruction for thosewho are not otherwise qualified to operate, service or maintain the equipment discussed. Although reasonable care has been taken to provide accurate and authoritative information in this document, no responsibility is assumed by Square D for any consequences arising out of the use of this material.

Table of Contents

Standard Elementary Diagram Symbols ..................... 1-3 NEMA and IECMarkings and Schematic Diagrams ...... 4 Control and Power Connection Table 4 Terminology ...................................................................... 5 Examples of Control Circuits .......................................... 6 2-Wire Control 6 3-Wire Control 6-9 Shunting Thermal Units During Starting Period 10 Overcurrent Protection for 3-Wire Control Circuits 11 AC Manual Starters andManual Motor Starting Switches ........................................................... 12 Class 2510 12 Class 2511 and 2512 13 2-Speed AC Manual Starters and IEC Motor Protectors...................................................... 14 Class 2512 and 2520 14 GV1/GV3 14 Drum Switches................................................................ 15 Class 2601 15 DC Starters, Constant andAdjustable Speed.............. 16 Class 7135 and 7136 16 Reversing DC Starters, Constant and Adjustable Speed ........................................................... 17 Class 7145 and 7146 17 Mechanically Latched Contactors ................................ 18 Class 8196 18 Medium Voltage Motor Controllers.......................... 18-25 Class 8198 18-25 Solid State Protective Relays................................... 26-27 Class 8430 26-27 General Purpose Relays ................................................ 28 Class 8501 28 NEMA Control Relays..................................................... 29 Class 8501 and 9999 29 General Purpose Relays ................................................ 30 Class 8501 30

Sensing Relays..................................................................
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